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Effect of Silica Nanoparticle Dispersion on Flexural Strength of Sand Mold with Sodium Silicate Binder
실리카 나노입자의 분산도가 주형의 항절강도에 미치는 영향
Panseong Kim, Min A Bae, Jae Ho Baek, Jung Ho Jae, Man Sig Lee
김판성, 배민아, 백재호, 제정호, 이만식
Korean J. Met. Mater. 2022;60(6):478-487.   Published online 2022 May 24
DOI: https://doi.org/10.3365/KJMM.2022.60.6.478

Abstract
Sodium silicate solutions are used as an eco-friendly binder in the casting process. However, the strength of sand molds using the sodium silicate solutions is reduced because of their low humidity resistance. In this study, silica nanoparticles were added to a sodium silicate solution with a constant SiO2/Na2O ratio to..... More

                        
Effect of P/Al Molar Ratio and Curing Conditions of CBAPC Binder on Flexural Strength and Moisture Resistance of Artificial Sand Core
CBAPC 바인더로 제조한 인공사 중자의 강도 및 내습성에 미치는 P/Al 몰 비와 경화 조건의 영향
Hyeon Gon Oh, DongKook Park, Yangdo Kim, Man Sig Lee
오현곤, 박동국, 김양도, 이만식
Korean J. Met. Mater. 2019;57(12):808-816.   Published online 2019 Nov 22
DOI: https://doi.org/10.3365/KJMM.2019.57.12.808

Abstract
CBAPC (chemically bonded aluminum phosphate ceramic) binders have various advantages, including superior corrosion resistance and strength at high temperature. They are also a non-toxic and eco-friendly material. We investigated an inorganic binder based on CBAPC using artificial sand for casting. The CBAPC binders were synthesized with various P/Al molar ratios..... More

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